Adsorption of palladium from chloride aqueous solution using silica alginate nanomaterial

被引：5
作者：
Abd-Elhamid, A. I. [1 ]
Abu Elgoud, E. M. [2 ]
Aly, H. F. [2 ]
机构：
[1] City Sci Res & Technol Applicat SRTA City, Adv Technol & New Mat Res Inst ATNMRI, Composites & Nanostruct Mat Res Dept, Alexandria 21934, Egypt
[2] Egyptian Atom Energy Author, Hot Labs Ctr, Nucl Fuel Chem Dept, Alexandria 13759, Egypt
来源：
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2023年 / 253卷
关键词：
Sodium alginate; Tetraethyl orthosilicate; Palladium ions; ANION-EXCHANGE RESINS; METAL IONS; RECOVERY; SEPARATION; PLATINUM; WASTE; SORPTION; ALUMINA; PRECONCENTRATION; COMPLEXES;
D O I：
10.1016/j.ijbiomac.2023.126754
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
The adsorption characteristics of palladium from chloride aqueous solution onto the silica alginate (SA-Si) nanomaterial have been investigated. The prepared nanomaterial (SA-Si) was characterized by various advanced techniques that ensured a successful preparation process. Different adsorption parameters including the solution pH, shaking time, palladium ion concentration, adsorbent dosage, and temperature were investigated. The experimental results showed that the pseudo-first-order model provided the best fitting for the palladium ions adsorption, and the time required to reach equilibrium was 90.0 min. The adsorption isotherm result from palladium was well described by the Langmuir isotherm model and the maximum adsorption capacity of (SA-Si) nanomaterial was estimated as 12.50 mg/g for Pd(II). Moreover, the thermodynamic results demonstrated that Pd(II) sorption onto (SA-Si) nanomaterial was endothermic and spontaneous. Additionally, the SA-Si nano -material can be used as an effective adsorbent for the sorption of Pd(II) from various metal ions present in fission products.
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页数：12
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